Reviewed By Michael L (Yulee, FL) Reviewed for a 2011 Honda CR-Z —6/7/2017 4:48 AM
No real difference at low RPM but love the sound from 3,000 RPM and up. Small bump in performance and MPG seems to be 2+/- greater, but too soon to really tell.
Reviewed By William C (Waterloo, IL) Reviewed for a 2014 Dodge Charger —8/19/2017 4:15 AM
it was fairly easy to install and looks nice under the hood, but not much difference in the sound of the car, and didn't see much difference in the horse power. my 14 srt8 charger is still pretty fast.